The Zanussi ZRX307W Refrigerator has some known problems that occur often. Here are some easy to do solutions for the problems or error codes your Zanussi might be giving you.
The temperature regulator is not set correctly, causing the appliance to either be too hot or too cold.
The door of the appliance is not closed correctly, which can affect the temperature inside.
The appliance is not receiving power because it is not correctly plugged into the mains socket, or there is no voltage in the socket.
The compressor is running continuously, likely due to incorrect temperature settings.
The appliance is making noise because it is not supported properly.
The door has been opened too frequently, causing the internal temperature to rise.
There is too much frost inside the appliance, likely due to improper air circulation.